Machine for mechanical tillage.



n. v. VQN MBYBNBURG. HAUHINE FOB MECHANICAL TILLAGE. LPPLIUTIOH FILBDJUIE 18, 1910.

1,018,843. Patented Feb.27,1912.

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K'. V. VON MEYBNBUBG. MAOHINB PGB MEOHA'NIUAL TILLAGE. ArrLxoA'rrol FILED :un 1e, 1,910.

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W/ Tft/E66 S f E V/A/ uff/vrai? to use high speed.

UNITED sT'ATEs linmmvT omnes.

KONRAD VICTOR VON EYENBURG, 0F ZURICH, SWITZERLAND, ASSIGNOR T0 MOTOR- KULTUR A. G., OF BASEL, SWITZERLAND.

MACHINE FDR MECHANICAL TILLAGE.

Specification of Letters Patent.

)Patented Feb. 27, 19u12.

To all whom it may concern Be it known that I, KONRAD Vlo'rolc VON Mernxmmo, engineer, citizen of Switzerland, residing at Zurich, Switzerland, have invented certain new and useful Improvements in Machines for Mechanical Tillage, of which the following is a specification.

Many forms of rotary apparatus 4for mechanical tillage have been devised recently. Most. of them consist of a drum, hung out backwardly from a wagon and fitted with suitable knives, having its axle horizontally disposed and rotated by motor located on said wagon. Most of them rotate forwardly like the wagon wheels, in order to require no pull from the wagon. Most of them have these knives rigidly disposed.

The present invention is intermediate of these two systems, as it uses neither the falling action nor the positive mechanical push of those tools, but the well-known scraping action of independently dragged elastic claws, like those of the spring-tine cultivators. Its purpose is to scra e oli' the compact earth clods or grains o the right. size required by the seed and plant for good growing. This requires a very great number of little cuts and, therefore, a multitude of narrowly spaced edge tools which, if rigidly iixed to a rotating shaft, would require an enormous amount of power.

The power of earth cutting by edge tools depending mainly upon the sharpness, section and surface of the tools and of their free cutting, I make them of small section and surface, referably selfsharpening, elastic and in ependent; so that each edge, also rotated mainly in a circle, 4may give wa laterally and backwardly, like the claws o a. scraping animal, and follow the Way of the least resistance upon a trembling or shivery curve.

Earth being scarcely elastic, any shock of a tool means a loss in energy. I Vprefer therefore to make the tools not only elastic but also of small mass, in order to be able I prefer claws formed simply of steel wire and bent forwardly like cultivator tines and thereby being always sharp in spite ot their being used up, and conveniently bent and fixed on elastic arms, slightly inclined backwardly, to obtain that an1mallike-elas tic dra ging by pulling a stitching tool, ex-

actly l e the plow is pulled and not pushed.

much that it may avoid big stones and` roots occurring sometimes. But I prefer to make use of this freedom only in rare cases of great. obstinate, obstacles, before the resistance becomes so great as to be a danger for my sharp claws.

The following descril'ition and drawings show the main principle in a 'few of `the many good ways to apply it.

Figure 1 shows a side'v'iew of the gcneral disposition of the toolfdrnm. Fig. 2 is a cross-section through the tool-drum. Fig. 3 is a longitudinal section of the tool-drum. Fig. 4 is a detaikof the tool and tool-holder. Fig. 5 shows a cross-section of a special way of holding the tool-holders. Fig. G and Fig. 6 show a special form of tool-holders and fenders for row culti'yating.

Fig. 1 shows the disposition of the drums B, or the drums on the back of a motor wagon A rotated like its drivers in order to help its forward motion and to reduce its pull. But the drum may also be rotated the other way. The drum may be composed of one or many sectional drums, of disks. of stars, or of baskets. It may rotate with or upon its axle. The claw-arms C may be of elast-ic material, or only elastically fixed upon the drum.` They may be of equal or unequal length. strength, inclination, elasticity and spacing. They may be disposed in straight or spiral or staggered rows. They may hold out claws of even or uneven and fixed upon a. common elastic wing of the drum, which is allowed to give way in case ofdanger.

Neighboring arms may assist each other in case of great stresses.

Figs.v 2 and 3 show a preferred way to apply the princi le before mentioned under Fig. 1.' Upon t e rotatable axle a is slid on keys a cage drum composed of hubbed vided with laterally inclined blades, or/the arm itself may be bent sidewise. Inverted gutter-shaped fenders u are loosely hung rom the tool-frame, so as to guide themselves swimming on the plants, letting free ong their lfeet. y avmg now described my invention what I claim as new and desire to secure by Letters Patent is 1. In a machine of the character described, in combination, a rotatable member, in'dependently elastically forwardly and out wardly pressing arms supported thereon, and scraping claws secured to the outer or free ends of said arms.

2. In a machine of the character described, ir combination, a rotatable member, independently elastically forwardly and out` estela'. pressing elastic arms. ef spring-Steel supported ereon, and scral i claws secuw y to the outer or free endg said arms.

3. n a machine of the'charct/er described, in combination, a rotatable member, inde pendently elastically forwardly and outwardly pressing arms su ported` thereon, and scrapin claws secure to the outer or free ends o said arms, said claws being formed of yielding-wire.

4.. In a nmachine of the characterdescribed, in combi ation, a rotatable member, independently elastieally forwardly .and youtwardly p y ing elastic arms. and sera ing claws secured to the outer or free enig of said arms, said scraping claws being formed of bent selsharpenmg steel wire.

5. In a machine of t e character described, in combination, a rotatable member, arm

means holding sai supporters in` a normal supporters rotatably mounted thereon, yieldlai position and permitting'the same to yieldl ckwardly. t U r 6. In machine of the character described, in combination, a rotatable member, arm supporters rotatably mounted thereon, stops operatively associated with said supporters, yielding arms carried b said'supporters scralping claws carried -said arms an( resi ient means holding said supports m operative engagement with said stops.

7. In a machine of the character described, in combination, a rotatable member com prising a shuft and a plurality of spaced, parallel disks carried thereby, means for maintaining said disks in spaced relation to each other, arm supporters pivotally connected to said disks, said pivotal connection being tparallel to said shaftLyielding arms secure to said supporters, scrapin claws carried by said arms, sto s to limit t e forw'ard movement of sai siiv porters, and yielding means normlly hol ing-said arms against said stops.

8. Ina machine of the character described, inl combination, `a rotatable member comprising a shaft and a plurality of spaced, parallel disks carried thereby, means for maintaining saiddisks in spaced relation to each other, arm supporters pivotally connected to said disks, saidpivotal connection being parallel to said shaft, yielding secured to said supporters, scra .mg claws carried by. said arms and yiel means maintaining said supporters in their normally operative position.

Intestlmony whereof I aix my'signature in prenee of two witnesses.

IUHRAD YIUI'OR vor IEYENBURG. Witnesses: x

` Jomrrnas Ansturm,

Cam. Gemma. y

arms 

